Climate almanac
Rosario
Colonia, Uruguay · -34.32°, -57.35°
What is the weather like in Rosario in September?
In September, Rosario is typically 66°F (19°C) during the day and 50°F (10°C) at night. The month brings about 2.3 in (58 mm) of precipitation in total.
- Average high66°F (19°C)
- Average low50°F (10°C)
- Precipitation2.3 in (58 mm)
- Clear or mostly clear days11
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)